CVE-2024-44957
xen: privcmd: Switch from mutex to spinlock for irqfds
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfd_wakeup() gets EPOLLHUP, when it is called by eventfd_release() by way of wake_up_poll(&ctx->wqh, EPOLLHUP), which gets called under spin_lock_irqsave(). We can't use a mutex here as it will lead to a deadlock. Fix it by switching over to a spin lock.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 4, 2024 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 < c2775ae4d9227729f8ca9ee2a068f62a00d5ea9c f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 < 49f2a5da6785b2dbde93e291cae037662440346e f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 < 1c682593096a487fd9aebc079a307ff7a6d054a3
Linux / Linux
6.6